Separator



Aug. 4, 1931, v D, BAKER. f 1,817,338

' l vSEPARATR Filed Jan. 26. 1927 Patented Aug. 4, 1931 oil and Water, froma current of air to ren- A `the housing v6 and overlying a sealing gasket 13y interposed between thecapdand the flange 20 will My invention relates to devices for sepaf rating foreign matter, such as oil and Water, from a current of air.

There are numerous uses in industry for compressed air which is clean and dry.`

While the air ordinarily furnished by a comfor separating the foreign matter,such as der the air useful in every instance inwhich pure, uncontaminated air is desirable.

An object of my'invention is to providel al;

m-eans'eifective to separate substantially all of the contained foreign matter from a currentl of air. y

My invention possesses other advantageous features, some of Which With the foregoing, Will be set forth at length in the following description Where I shall 'outline' inY fullthat form of the separator of my invention, Which I have selected for illustration in the drawings accompanying and formingv part of the present specification. In saidV drawings I have shown one form of separator embodying my invention, but it is to be understood that I do not limit myself to such form since the invention, as set forth in the claims, may be embodied in a lplurality, of forms. i f f In the drawings:

Fig. 1 isa transverse section thru the de-,lv vice ofmy invention, the plane of section being indicated by the line 1-1 of Fig. 2.

Fig. 2 is a cross section of my device, the planes of section being indicated by the line. 2 2 of Fig. 1.

Fig. 3 is a cross section of the device ofl my invention, With theplane of section be-y ing indicated by the line 3 3 of Fig. 1.

The separator of my invention preferably,` comprises a housing having an air inlet pio.

vided with means fory reducing the velocity of the entering air and changing its direc-l tion of flow, and having an air outlet to-y gether with means for filtering the outgoing air.

PATENT OFFICE;

nrir'rnn gcgfBKEn, or AKLAND', CALIFORNIA, AssIGNoR vTo BAKEIaHANsEN MANU- y y rnc'rUnINe oo., or ALAMEDA, CALIFORNIAQACORPORATION 0F CALIFORNIA Si housing 6 is .provided Which is usuallyof generally cylindrical., formand is disposed in a vertical position. The housing is ared at the bottomvto provide a pairgof lugs 7 .by means of which the `separator, cany pressor is sufliciently pure for general use, it ffastened' to-v a base,` .AY screw i. plug `8 Vis usually contains moisture and oil which render its use disadvantage'ous in certain, cases. I have therefore provided a device cap 9'bolted onto a' circular flange l1 at the topfof the housing. The interior of the cap" 9 is formed Withy a collar 12extendinginto marking-the division of its interior into an upper chamberlI and a lower chamber 16 tersecting thefhousing thru the nipple 17., but in order vto 'redUCe'thevelOCity of-the entering cur-j rent of air', the pipe and nipplek are connected by a reducer 19. y l y In order to break up v,the incoming curl rent fof.; contaminated air and to aid in changing its direction of flow, a cylindrical screen ,21is fitted intofthe outlet of the nip- .Y ple 17 fand extends substantially across the i Intermediate the ends ofthehousingl and."y

interior' of the housingG. The endev of the' screen 21-is closedand compels theincomyair to pass thru the interstices of the screen.' The current of airis effectively broken up and large particles of foreignmatter are entrapped. Due to the decreased` velocity ofthe entering'aircurrcnt as Well as to its breaking Vup, and abrupt change of y direction vas it enters the interior of rthe y housing 6, gravital separation of .theair and the foreignmatter contained in it takes'y place. Oil and Water being vconsiderably heavierthan air, separate` from the air and collect in the loiver chamber. 16. A manually operablepet cock 22 is provided by means of which the chamber 16 can be periodically drained. Y v

While my separatoris intended primarl j ily tok removeoil kand Waterff'rom ar current In the preferred embodiment of the in-v of air, it is alsoeffectivein removing particles of sand, dirt and similar matter. The rapid change in direction of flow .of the entering air and its reduced velocity are together instrumental in causing dirt as well as particles of liquid to precipitate gravitally into the lower chamber 1G. Iii addition, the meshes of the screen 21, particularly after they have become inoistened with oil and water, readily intercept grains of dirt. i

The outlet for the air within the housing 6 is tliru apipe 23 piercing the cap 9 and in threaded engagement therewith. In flowing from the screen 2l to the 'outlet pipe 23, tlie air ascends, thereby providing further opportunity for the gravital separation of oil, water and dirt. Substantially all of the foreign matter is removed from the air when it reaches the upper chamber 14, but in order to insure that any residue is also removed from tlie air, I preferably provide a filtering means. The iltering means includes a pair of disc screens 24 and 25 which extend transversely of the upper chamber 14 between the walls of the housing 6. The screens 24 and 25 are spaced to enclose an intermediate body of filtering material 27, such as felt or a similar substance. Any minor residue of foreign matter is removed from the air by the filtering material. After it has passed thru the filtering means, the air is'free to flow from the housing 6 thru the outlet pipe 23 to the point of use.

With the form of separator described, the collected foreign matter removed from the current of air can be drained from the device by operation of the pet cock 22, while the screen 21 and the filtering means 27 can readily be removed for cleaning or renewal, should such become necessary, and the separator if operated ator below the capacity for which it is designed will furnish air substantially free from all foreign matter.

I claim:

l 1. A separator comprising a'housing having an inlet aperture in the side thereof, said aperture being at a material distance from the end of said housing, a screen disposed iii said housing and in communication with said inlet aperture; said screen having a closed end which serves as a baille, an inlet pipe in communication with said inlet aperture for admitting fluid to said housing at a predetermined velocity, a reducer between said inlet aperture and said inlet pipe for decreasing said velocity, an outlet aper- .ture in an end of said housing, and a filter disposed in said housing intermediate said screen and said outlet aperture.

2. A separator comprising a substantially vertical housing having an inlet aperture in a side thereof, said inlet aperture being at a material distance from the bottom of said housing, an inlet pipe in communicam hand.

y DEXTER C. BAKER. 

